我是 stm32 的新手,我在 linux shell 上编程。
每次我观看 arm gcc makefile 示例时,我都会看到很多附加的 gcc 标志。我想知道如何为特定类型的板(例如 stm32f10x)确定这些标志。或者我应该说我应该检查哪些文件以获取这些信息。或者这些标志对于不同的板基本相同?
这是我在https://github.com/rowol/stm32_discovery_arm_gcc.git中找到的一个 makefile 示例,我不知道 flags like-mcpu
是-mfpu
什么。
# Put your stlink folder here so make burn will work.
STLINK=~/stlink.git
# Put your source files here (or *.c, etc)
SRCS=main.c system_stm32f4xx.c
# Binaries will be generated with this name (.elf, .bin, .hex, etc)
PROJ_NAME=blinky
# Put your STM32F4 library code directory here
STM_COMMON=../STM32F4-Discovery_FW_V1.1.0
# Normally you shouldn't need to change anything below this line!
#######################################################################################
CC=arm-none-eabi-gcc
OBJCOPY=arm-none-eabi-objcopy
CFLAGS = -g -O2 -Wall -Tstm32_flash.ld
CFLAGS += -mlittle-endian -mthumb -mcpu=cortex-m4 -mthumb-interwork
CFLAGS += -mfloat-abi=hard -mfpu=fpv4-sp-d16
CFLAGS += -I.
# Include files from STM libraries
CFLAGS += -I$(STM_COMMON)/Utilities/STM32F4-Discovery
CFLAGS += -I$(STM_COMMON)/Libraries/CMSIS/Include -I$(STM_COMMON)/Libraries/CMSIS/ST/STM32F4xx/Include
CFLAGS += -I$(STM_COMMON)/Libraries/STM32F4xx_StdPeriph_Driver/inc
# add startup file to build
SRCS += $(STM_COMMON)/Libraries/CMSIS/ST/STM32F4xx/Source/Templates/TrueSTUDIO/startup_stm32f4xx.s
OBJS = $(SRCS:.c=.o)
.PHONY: proj
all: proj
proj: $(PROJ_NAME).elf
$(PROJ_NAME).elf: $(SRCS)
$(CC) $(CFLAGS) $^ -o $@
$(OBJCOPY) -O ihex $(PROJ_NAME).elf $(PROJ_NAME).hex
$(OBJCOPY) -O binary $(PROJ_NAME).elf $(PROJ_NAME).bin
clean:
rm -f *.o $(PROJ_NAME).elf $(PROJ_NAME).hex $(PROJ_NAME).bin
# Flash the STM32F4
burn: proj
$(STLINK)/st-flash write $(PROJ_NAME).bin 0x8000000